Messages in this thread | | | Date | Fri, 17 Aug 2012 14:11:12 -0400 | From | Jeff Garzik <> | Subject | Re: [PATCH v3 2/2] ata: implement MODE SELECT command |
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On 07/05/2012 08:18 AM, Paolo Bonzini wrote: > The cache_type file in sysfs lets users configure the disk cache in > write-through or write-back modes. However, ata disks do not support > writing to the file because they do not implement the MODE SELECT > command. > > This patch adds a translation from MODE SELECT (for the caching page > only) to the ATA SET FEATURES command. The set of changeable parameters > answered by MODE SENSE is also adjusted accordingly. > > Cc: Sergei Shtylyov <sshtylyov@mvista.com> > Cc: Jeff Garzik <jgarzik@pobox.com> > Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> > --- > v2->v3: ensure that only the first page of the sg list is > accessed > > drivers/ata/libata-scsi.c | 194 +++++++++++++++++++++++++++++++++++++++++++-- > 1 files changed, 188 insertions(+), 6 deletions(-)
applied 1-2
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